CN115246238A

CN115246238A - Frictioning device of pipeline protective layer winding equipment

Info

Publication number: CN115246238A
Application number: CN202210725573.5A
Authority: CN
Inventors: 陈自振; 陈海林; 昝石岭; 任建树; 敬有超
Original assignee: Sinopec Henan Petroleum Engineering & Construction Co ltd; Sinopec Oilfield Service Corp
Current assignee: Sinopec Henan Petroleum Engineering & Construction Co ltd; Sinopec Oilfield Service Corp
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-10-28

Abstract

The invention relates to a pipeline protective layer winding device, in particular to a glue scraping device of the pipeline protective layer winding device. The glue scraping device of the pipeline protective layer winding equipment comprises a first frame body and a second frame body positioned above the first frame body; the first frame body is provided with at least two first scraping plates which are arranged in parallel, and the upper side edge of each first scraping plate is used for scraping glue on the lower side surface of the fiber layer to be wound; the second frame body is provided with at least two second scraping plates which are arranged in parallel, and the lower side edges of the second scraping plates are used for scraping glue on the upper side surface of the fiber layer to be wound; the first scrapers and the second scrapers are staggered in the horizontal direction, the upper side edge of at least one first scraper is higher than the plane where the lower side edges of two adjacent second scrapers are located, and the upper side edge of at least one second scraper is lower than the plane where the upper side edges of two adjacent first scrapers are located. The invention can solve the problem of contradiction between the structural complexity and the glue scraping effect of the existing glue scraping device.

Description

Frictioning device of pipeline protective layer winding equipment

Technical Field

The invention relates to a pipeline protective layer winding device, in particular to a glue scraping device of the pipeline protective layer winding device.

Background

In the construction of oil and gas long-distance pipeline engineering, the control of the construction quality of a horizontal directional drilling crossing section is a key link. The directional drilling crossing (HDD) technology has the characteristics of high accuracy, long crossing distance, high construction speed, high mechanization degree, trenchless and the like, and is widely applied to long-distance pipeline construction engineering. When a crossing pipeline used in the directional drilling crossing technology is dragged underground, an external 3PE anticorrosive layer is easy to damage, and in order to solve the problem, a glass fiber yarn or a glass fiber cloth is usually wound on a pipeline to be processed through pipeline protective layer winding equipment to form a protective layer.

The winding equipment adopted in the method for preparing the glass fiber reinforced plastic protective layer on the polyethylene anticorrosive layer of the steel pipe in the prior art, such as the winding equipment disclosed in the Chinese invention patent application with the application publication number of CN 11069639A, comprises a movable trolley, a glue dipping tank, a press roller, a glue scraping mechanism and a cutting mechanism. The movable trolley is used for rotatably supporting two axial ends of the pipeline to be processed and can drive the pipeline to be processed to reciprocate axially, glue solution is contained in the glue dipping tank and is used for infiltrating the glue solution when glass fiber cloth passes through, after a glue scraping device in the pressing roller, the glue scraping mechanism and the cutting mechanism scrapes redundant glue solution on the glass fiber cloth, the glass fiber cloth is wound on the pipeline to be processed which rotates and translates, and a protective layer is formed on the surface of the pipeline to be processed together with the glass fiber cloth after the glue solution is solidified.

The glue scraping device is an important device of a pipeline protective layer winding device, and glass fiber yarns or glass fiber cloth are easy to converge and flow after being wound on a pipeline to be processed if too much glue solution is infiltrated on the fiber layer to be wound before the fiber layer to be wound is wound on the pipeline to be processed, so that the flatness of the cured protective layer is influenced; if the glue solution is too little, the problems of empty drum, cavity and incomplete bonding are easy to occur between adjacent fiber layers to be wound, and the cured protective layer is easy to damage and fall off. Therefore, the stable operation of the glue scraping device needs to be ensured when the pipeline protective layer winding equipment runs.

The structure of the existing frictioning device is often simpler, the corresponding side of a fiber layer to be wound by a planar scraper is generally adopted for frictioning, the position of the glue solution on the fiber layer to be wound is slowly changed in the frictioning process due to the fact that the glue solution is viscous, therefore, the single frictioning effect is not ideal enough, the scrapers above two channels are required to be arranged sometimes, in order to enable the scrapers to be in effective contact with the fiber layer to be wound, the scraper supporting devices are required to be respectively arranged aiming at each scraper, and the structure is complex. And, the frictioning effect that the factors such as pipeline diameter, pipeline rotation speed, glue solution viscosity match is also different simultaneously, in order to guarantee the frictioning effect under the different operating modes, just need adjust the position of scraper blade, and in order to adjust the position of scraper blade, just need set up scraper blade adjustment mechanism again on every scraper blade strutting arrangement at present, and the structure can become more complicated.

Disclosure of Invention

The invention aims to provide a frictioning device of pipeline protective layer winding equipment, which solves the problem of contradiction between the structural complexity and the frictioning effect of the frictioning device of the existing pipeline protective layer winding equipment.

The glue scraping device of the pipeline protective layer winding equipment adopts the following technical scheme:

the glue scraping device of the pipeline protective layer winding equipment comprises a scraping plate and a glue scraping plate, wherein the scraping plate is used for scraping redundant glue solution on the corresponding side surface of a fiber layer to be wound; the glue scraping device comprises a first frame body and a second frame body positioned above the first frame body; the first frame body is provided with at least two first scraping plates which are arranged in parallel, and the upper side edge of each first scraping plate is used for scraping glue on the lower side surface of the fiber layer to be wound; at least two second scraping plates which are arranged in parallel are arranged on the second frame body, and the lower side edge of each second scraping plate is used for scraping glue on the upper side surface of the fiber layer to be wound; the first scrapers and the second scrapers are staggered in the horizontal direction, the upper side edge of at least one first scraper is higher than the plane where the lower side edges of two adjacent second scrapers are located, and the upper side edge of at least one second scraper is lower than the plane where the upper side edges of two adjacent first scrapers are located.

The technical scheme has the advantages that more than two first scraping plates can be arranged simultaneously through the first frame body, and more than two second scraping plates can be arranged simultaneously through the second frame body, so that more scraping plate supporting devices are avoided under the condition of meeting the requirements of multiple scraping adhesives, and the structure of the device is simplified; meanwhile, the first scrapers and the second scrapers are staggered in the horizontal direction, the upper side edge of at least one first scraper is higher than the plane where the lower side edges of two adjacent second scrapers are located, and the upper side edge of at least one second scraper is lower than the plane where the upper side edges of two adjacent first scrapers are located, so that a structure in which the scrapers are vertically embedded with each other is formed, and therefore the fiber layer to be wound can be limited into a corrugated structure by the first scrapers and the second scrapers and is contacted with the scrapers at a certain wrap angle; compared with the prior art, first scraper blade can reliably with the downside contact of treating winding fibrous layer, the second scraper blade can reliably with the side contact of going up of treating winding fibrous layer to guarantee the frictioning effect, and set up the demand when can satisfy the multichannel scraper blade through simple frame structure, solved the structural complexity of the frictioning device of current pipeline inoxidizing coating winding equipment and the contradiction between the frictioning effect.

As a further limited technical scheme: the number of the first scrapers is larger than that of the second scrapers.

The above-mentioned technical scheme who further prescribes a limit to's beneficial effect is that what first scraper blade corresponds is the downside of treating the winding fibrous layer, treats the downside of winding fibrous layer and accumulates the glue solution more easily, sets up more quantity and can realize the frictioning effect better.

As a further limited technical scheme: the number of the first scraping plates is odd, and the number of the second scraping plates is 1 less than that of the first scraping plates; the second scrapers are arranged corresponding to the interval between two adjacent first scrapers.

The technical scheme has the advantages that the first scraper blade and the second scraper blade adopt the arrangement form to enable the fiber layer to be wound to form a regular bending shape, and the glue scraping effect is convenient to control.

As a further limited technical scheme: be equipped with fibre layer limit structure in first framework and/or the second framework, fibre layer limit structure is used for treating the winding fibre layer along the length direction location of first scraper blade and second scraper blade for form the interval between the width direction both sides of treating the winding fibre layer and the corresponding side of first framework and second framework, the glue solution that supplies to scrape flows down.

The technical scheme has the beneficial effects that the arrangement of the intervals can avoid excessive accumulation of glue solution, and the glue solution can be effectively scraped.

As a further limited technical scheme: the fiber layer limiting structure is a limiting column extending in the vertical direction.

The technical scheme has the advantages that the limiting column is simple in structure and convenient to manufacture.

As a further limited technical scheme: the cross section of the part of the cylinder, which is used for contacting with the fiber layer to be wound, is arc-shaped.

The above-mentioned technical scheme's that further prescribes a limit to beneficial effect is, the cambered surface can avoid the grazing to treat the edge of winding fibrous layer, guarantees the steady operation of pipeline inoxidizing coating winding equipment.

As a further limited technical scheme: the fiber layer limiting structure is fixed on the first scraper.

The technical scheme has the advantages of being beneficial to reducing the gravity center of the glue scraping device and improving the stability.

As a further limited technical scheme: an adjusting mechanism is arranged between the first frame body and the second frame body and used for adjusting the relative position between the first frame body and the second frame body along the vertical direction.

The above-mentioned further technical scheme who prescribes a limit to's beneficial effect is, adjusts the upper and lower direction relative position between first framework and the second framework through adjustment mechanism and can adjust the cornerite between treating winding fibrous layer and the scraper blade, adapts to different frictioning demands, is favorable to improving commonality and frictioning reliability.

As a further limited technical scheme: the adjusting mechanism comprises a stud arranged on the first frame body, the stud extends along the vertical direction, and a pressing piece is connected to the stud in a threaded mode; the second frame body is provided with a compression joint lug plate, the compression joint lug plate can be movably sleeved on the stud up and down, and the compression piece is used for compressing the top surface of the compression joint lug plate.

The technical scheme has the advantages that the screw bolt, the compression joint lug plate and the compression piece are matched, the structure is simple, and the adjustment is convenient.

As a further limited technical scheme: the two sides of the first frame body or the second frame body, which correspond to the two ends of the first scraper blade and the two sides of the second scraper blade in the length direction, are respectively provided with a mounting shaft, and the glue scraping devices are assembled on the corresponding mounting seats in a hinged mode.

The beneficial effect of the above-mentioned further technical scheme who injects is, the frictioning device can rely on the tension of waiting to twine the fibrous layer automatic adaptation with the installation of articulated form to wait to twine the angle of marcing on fibrous layer, guarantees the frictioning stability of frictioning device.

Drawings

Fig. 1 is a schematic structural view of a pipe protective layer wrapping apparatus according to embodiment 1 of a frictioning device of the pipe protective layer wrapping apparatus of the present invention;

fig. 2 is a schematic structural view of the glue spreading device in fig. 1.

The names of the components corresponding to the corresponding reference numerals in the drawings are: 11. a pipeline clamping table; 12. supporting the rollers; 21. a trolley track; 22. a gluing trolley; 23. a glue dipping tank; 31. a yarn pressing device; 41. a glass fiber stacking rack; 42. winding the glass fiber yarn; 51. branching combs; 61. a dosing tank; 70. a glue scraping device; 71. a first frame body; 72. installing a shaft; 73. a stud; 74. a pressing member; 75. a first squeegee; 76. a limiting column; 81. a second frame body; 82. pressing and connecting the ear plates; 83. a second squeegee; 91. a pipeline to be processed; 92. the fibre layers are to be wound.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, in the embodiments of the present invention, terms such as "first" and "second" may be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that "comprises a component of 8230; \8230;" comprises an element of 8230; "etc. may occur does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the component.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly to each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the invention, unless otherwise explicitly specified or limited, the term "provided" should be understood broadly, for example, the object provided may be a part of the body, or may be arranged separately from the body and connected to the body, which may or may not be detachable. The specific meanings of the above-mentioned terms in the present invention can be understood by those skilled in the art through specific situations.

The present invention is described in further detail below with reference to examples.

Embodiment 1 of the frictioning device of the pipe protective layer winding apparatus of the present invention:

the glue scraping device of the pipeline protective layer winding equipment is used for the pipeline protective layer winding equipment shown in figure 1, the pipeline protective layer winding equipment is used for winding a glass fiber reinforced plastic protective layer which is directionally drilled to penetrate through a pipeline, and comprises a pipeline clamping table 11, a trolley track 21, a glue coating trolley 22 and a glass fiber stacking rack 41. The pipeline clamping table 11 is provided with two positions at intervals along the left and right directions, each pipeline clamping table 11 is provided with two supporting rollers 12 arranged at intervals in the front and back directions, the two ends of the pipeline 91 to be processed are supported in a rolling mode, and the pipeline 91 to be processed is driven by the driving device to rotate during operation. The trolley track 21 extends along the left-right direction, a glue dipping tank 23 is arranged on the glue coating trolley 22 on the trolley track, a fiber layer 92 to be wound formed by a plurality of parallel glass fiber yarns is led in from the rear side of the glue dipping tank 23, and the fiber layer 92 to be wound is led out from the front side of the glue dipping tank 23. The pipe protective layer winding apparatus further includes a batching tank 61 for supplying glue to the dip tank 23. The glue scraping device 70 is disposed on top of the slot wall on both sides of the width direction of the dipping slot 23, that is, on top of the slot wall on both sides of the left and right sides, and is used for scraping off the excessive glue solution on the fiber layer 92 to be wound. The yarn pressing device 31 is arranged behind the glue scraping device 70 and used for pressing the fiber layer 92 to be wound into the glue solution in the glue dipping tank 23 to ensure that the fiber layer 92 to be wound is completely soaked. The glass fiber stacking rack 41 is provided with glass fiber yarn rolls 42 arranged in an array, and glass fiber yarns to be wound are supplied by the glass fiber yarn rolls 42. During production, the control device controls the gluing trolley 22 and the pipeline clamping table 11 to act in a matching manner, the fiber layer 92 to be wound is firstly pressed into glue solution in the glue dipping tank 23 by a yarn pressing structure of the glue dipping tank 23, then redundant glue solution is scraped by the glue scraping device 70 at the front part of the glue dipping tank 23, then the fiber layer is led to the branching comb 51 positioned in front of the glue dipping tank 23, and finally the fiber layer is wound on the pipeline 91 to be processed after being separated and positioned by the branching comb 51.

The squeegee device 70 claimed in the present invention will be explained below.

As shown in fig. 2, the glue spreading device 70 includes two frames disposed up and down, a first frame 71 and a second frame 81 located above the first frame 71, and the two frames each include a peripheral side plate connected to each other to form a rectangular structure. The side plates (i.e., the left and right side plates) of the first frame 71 corresponding to the two short sides of the rectangle are provided with a mounting shaft 72 at the middle part in the front-back direction, so that the glue scraping device 70 is assembled on the mounting seats formed by the side walls of the left and right sides of the glue dipping tank 23 in a hinged manner, the scraped glue solution can conveniently flow back to the glue dipping tank 23, and waste and pollution of the glue solution are avoided. A stud 73 is welded and fixed above the mounting shaft 72, the stud 73 extends in the vertical direction, a pressing piece 74 is in threaded connection with the stud 73, the pressing piece 74 is a T-shaped pressing handle, an internal thread matched with the stud 73 is arranged on the longitudinal portion of the pressing handle, and the transverse portion of the pressing handle is operated by a user to rotate the pressing piece 74. The middle part in the front-back direction of the side plate (i.e., the left and right side plates) of the second frame 81 corresponding to the two short sides of the rectangle is fixed with a pressing lug plate 82, the pressing lug plate 82 is provided with a stud through hole for the stud 73 to pass through, the second frame 81 can be movably sleeved on the stud 73 up and down through the pressing lug plate 82, and the pressing piece 74 is used for pressing the top surface of the pressing lug plate 82. The stud 73, the pressure lug 82, and the pressing handle constitute an adjustment mechanism for adjusting the relative position between the first housing 71 and the second housing 81 in the vertical direction.

The side plates corresponding to the two long sides of the rectangle on the first frame 71 form two first scrapers 75 parallel to each other, a middle scraper is further arranged in the middle of the two first scrapers 75, the middle scraper also forms one first scraper 75, and three first scrapers 75 are arranged. The first scrapers 75 have the same structure, and the upper edges are located on the same plane, and the plate surfaces are perpendicular to the plane. The upper edge of the first scraper 75 is used to contact with the lower side of the fiber layer 92 to be wound to scrape off the excessive glue solution on the lower side of the fiber layer 92 to be wound. Two second scrapers 83 parallel to each other are formed on the side plates of the second frame 81 corresponding to the two long sides of the rectangle, and two second scrapers 83 are provided in total. The lower side edge of the second scraper 83 is used to contact with the upper side of the fiber layer 92 to be wound to scrape off the excessive glue solution on the upper side of the fiber layer 92 to be wound. Fig. 2 shows only the outline of both side edges in the width direction and the center line of the center in the width direction of the fiber layer 92 to be wound, and actually the fiber layer 92 to be wound is formed of a plurality of glass fiber yarns arranged in parallel in the left-right direction.

In order to ensure that each scraper can contact the fiber layer 92 to be wound, the first scrapers 75 and the second scrapers 83 are arranged in a transversely staggered and vertically embedded mode. Specifically, the second scrapers 83 are respectively arranged corresponding to the interval between two adjacent first scrapers 75, forming an arrangement structure staggered in the horizontal direction; the upper side of the first scraper 75 is higher than the plane of the lower sides of two adjacent second scrapers 83, and the lower side of the second scraper 83 is lower than the plane of the upper sides of two adjacent first scrapers 75, that is, the lower part of the first scraper 75 and the upper part of the second scraper 83 have a laminated area laminated along the horizontal direction, forming an arrangement structure embedded with each other along the vertical direction. In order to fit the second scraper 83 into the space between the first scrapers 75, the bottom end surfaces of the left and right sides of the first frame 71 are higher than the bottom end surface of the first scraper 75, and can be retracted from the first scraper 75 in the middle of the second frame 81.

The left end and the right end of the foremost first scraper 75 and the left end and the right end of the rearmost first scraper 75 on the first frame 71 are respectively provided with a limiting column 76, the limiting columns 76 are cylindrical columns to form a fiber layer limiting structure, and the fiber layer limiting structure is used for positioning the fiber layer 92 to be wound along the length directions of the first scraper 75 and the second scraper 83, so that intervals are formed between the two sides of the fiber layer 92 to be wound in the width direction and the corresponding side edges of the first frame 71 and the second frame 81, and the scraped glue solution flows down.

In use, the T-shaped pressing member 74 is unscrewed from the stud 73 on the first frame 71, the second frame 81 is removed from the first frame 71, the fiber layer 92 to be wound passes from the upper side of the first frame 71 to the rear side, then the second frame 81 is pressed onto the fiber layer 92 to be wound, the pressing member 74 is screwed onto the stud 73, the second frame 81 is pressed downwards in the process of screwing the pressing member 74, the second scraper 83 overcomes the tension of the fiber layer 92 to be wound, the part, corresponding to the glue scraping device 70, of the fiber layer 92 to be wound is limited into a W shape by the first scraper 75 and the second scraper 83, the first scraper 75 is reliably contacted with the lower side surface of the fiber layer 92 to be wound, three glue scraping positions are simultaneously formed on the lower side surface of the fiber layer 92 to be wound, and the second scraper 83 is reliably contacted with the upper side surface of the fiber layer 92 to be wound, and two glue scraping positions are simultaneously formed on the upper side surface of the fiber layer 92 to be wound. The wrap angle formed by the fiber layer 92 to be wound on the first scraper 75 and the second scraper 83 can be adjusted by adjusting the tightening degree of the pressing piece 74, so that different frictioning requirements can be met. Meanwhile, the first frame 71 is hinged to the glue dipping tank 23 through the mounting shaft 72, and the position of the first frame can be automatically adjusted by means of the tension of the fiber layer 92 to be wound when the diameter of the pipeline changes, so that the acting force between the first scraper 75 and the second scraper 83 and the fiber layer 92 to be wound can be kept stable.

Embodiment 2 of the frictioning device of the pipe protective layer winding apparatus of the present invention:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the first scraper 75 is provided at three positions in the first frame 71, and the second scraper 83 is provided at two positions in the second frame 81. In this embodiment, the first scraper 75 of the first frame 71 and the second scraper 83 of the second frame 81 are provided at two positions. Of course, in other embodiments, the number of the first scrapers 75 and the second scrapers 83 can be increased.

Embodiment 3 of the frictioning device of the pipe protective layer winding apparatus of the present invention:

the present embodiment is different from embodiment 1 in that: in embodiment 1, an adjustment mechanism is provided between the first housing 71 and the second housing 81. In this embodiment, the first frame 71 and the second frame 81 are directly fixed and connected.

Embodiment 4 of the frictioning device of the pipe protective layer winding apparatus of the present invention:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the squeegee device 70 is mounted on the corresponding mount in a hinged manner. In the present embodiment, the glue spreading device 70 is fixedly mounted on the corresponding mounting seat. In other embodiments, the mounting base may be provided independently of the dip tank 23.

Embodiment 5 of the frictioning device of the pipe protective layer winding apparatus of the present invention:

the present embodiment is different from embodiment 1 in that: in embodiment 1, the first frame 71 and the second frame 81 are surrounded by plate bodies. In this embodiment, the positions of the first frame 71 and the second frame 81 except for the scraper are rod bodies, and the first frame 71 and the second frame 81 are enclosed by the rod bodies and the plate bodies.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. The glue scraping device of the pipeline protective layer winding equipment comprises a scraping plate, a glue scraping plate and a glue scraping plate, wherein the scraping plate is used for scraping redundant glue solution on the corresponding side surface of a fiber layer (92) to be wound; the glue scraping device is characterized by comprising a first frame body (71) and a second frame body (81) positioned above the first frame body (71); at least two first scraping plates (75) which are arranged in parallel are arranged on the first frame body (71), and the upper side edge of each first scraping plate (75) is used for scraping glue on the lower side surface of the fiber layer (92) to be wound; at least two second scraping plates (83) which are arranged in parallel are arranged on the second frame body (81), and the lower side edges of the second scraping plates (83) are used for scraping glue on the upper side surface of the fiber layer (92) to be wound; the first scrapers (75) and the second scrapers (83) are staggered in the horizontal direction, the upper side of at least one first scraper (75) is higher than the plane where the lower sides of two adjacent second scrapers (83) are located, and the upper side of at least one second scraper (83) is lower than the plane where the upper sides of two adjacent first scrapers (75) are located.

2. The doctor apparatus of a pipe armour layer winding arrangement according to claim 1, characterised in that the number of first scrapers (75) is greater than the number of second scrapers (83).

3. The doctor apparatus of a pipe armour layer winding arrangement according to claim 2, characterised in that the number of first scrapers (75) is odd, the number of second scrapers (83) is 1 less than the number of first scrapers (75); the second scrapers (83) are arranged corresponding to the interval between two adjacent first scrapers (75).

4. The glue scraping device of the pipeline protective layer winding equipment according to claim 1, 2 or 3, characterized in that a fiber layer limiting structure is arranged on the first frame body (71) and/or the second frame body (81), and the fiber layer limiting structure is used for positioning the fiber layer (92) to be wound along the length direction of the first scraper (75) and the second scraper (83), so that a gap is formed between two sides of the fiber layer (92) to be wound in the width direction and corresponding sides of the first frame body (71) and the second frame body (81) for the scraped glue solution to flow down.

5. The frictioning device of a pipe armour layer winding arrangement according to claim 4, wherein the fibre layer stop structure is a vertically extending stop post (76).

6. The frictioning device of a pipe armour layer winding apparatus of claim 5, wherein the cross-section of the cylinder for contact with the fiber layer (92) to be wound is arc-shaped.

7. The frictioning device of a pipe armour layer winding arrangement according to claim 4, wherein the fibre layer stop is fixed to the first scraper (75).

8. The frictioning device of claim 1, 2 or 3, wherein an adjusting mechanism is disposed between the first frame body (71) and the second frame body (81) for adjusting the relative position between the first frame body (71) and the second frame body (81) along the vertical direction.

9. The frictioning device of a pipe armour-winding arrangement according to claim 8, wherein the adjustment mechanism comprises a stud (73) provided on the first frame (71), the stud (73) extending in an up-down direction, and a pressing member (74) threadedly coupled thereto; the second frame body (81) is provided with a crimping lug plate (82), the crimping lug plate (82) can be movably sleeved on the stud (73) up and down, and the pressing piece (74) is used for pressing the top surface of the crimping lug plate (82).

10. The frictioning device of the winding equipment of the protective layer of the pipeline according to claim 1, 2 or 3, wherein the first frame (71) or the second frame (81) has a mounting shaft (72) on both sides corresponding to the two ends of the first scraper (75) and the second scraper (83) in the length direction, respectively, so that the frictioning device can be assembled on the corresponding mounting seat in a hinged manner.